Remove outdated FIXME

Source/core/inspector/InspectorTraceEvents.cpp

Index: Source/core/inspector/InspectorTraceEvents.cpp
diff --git a/Source/core/inspector/InspectorTraceEvents.cpp b/Source/core/inspector/InspectorTraceEvents.cpp
index a6d443823373fb1521e5726bfaf2db9e45ed5920..57a743ff4b9e03df550bc9e021c9f20a8569fea1 100644
--- a/Source/core/inspector/InspectorTraceEvents.cpp
+++ b/Source/core/inspector/InspectorTraceEvents.cpp
@@ -369,12 +369,12 @@ PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorLayoutInvalidationTrac
     return value.release();
 }
 
-PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorPaintInvalidationTrackingEvent::data(const LayoutObject* layoutObject, const LayoutObject* paintContainer)
+PassRefPtr<TraceEvent::ConvertableToTraceFormat> InspectorPaintInvalidationTrackingEvent::data(const LayoutObject* layoutObject, const LayoutObject& paintContainer)
 {
     ASSERT(layoutObject);
     RefPtr<TracedValue> value = TracedValue::create();
     value->setString("frame", toHexString(layoutObject->frame()));
-    setGeneratingNodeInfo(value.get(), paintContainer, "paintId");
+    setGeneratingNodeInfo(value.get(), &paintContainer, "paintId");
     setGeneratingNodeInfo(value.get(), layoutObject, "nodeId", "nodeName");
     return value.release();
 }